The United States: Public Notification: Best Candy contains hidden drug ingredient nortadalafil (English Only)
The US Food and Drug Administration (FDA) is advising consumers not to purchase or use Best Candy, a product promoted as an energy booster on various websites and possibly in some retail stores. This product was identified during an examination of imported goods. FDA laboratory analysis confirmed that Best Candy contains nortadalafil. Nortadalafil is structurally similar to tadalafil, the active ingredient in Cialis, an FDA-approved prescription drug for erectile dysfunction. This undeclared ingredient may interact with nitrates found in some prescription drugs, such as nitroglycerin, and may lower blood pressure to dangerous levels. People with diabetes, high blood pressure, high cholesterol, or heart disease often take nitrates. 

Please refer to the following website in FDA for details: 

In Hong Kong, the above product is not a registered pharmaceutical product. 

Ends/Tuesday, May 15, 2018 
Issued at HKT 15:00